I believe in them just as much as I believe in vampires, ghosts and any other thing. However, in my case it means that I don't believe until I see/touch/sense in any other way this creature. So, I think it is pretty possible for them to exist

Deep in oceans? You mean fish? The problem is that people wants to name unknown things.We do not know what is deep in ocean so you call it UFO, we dont know how big is universe and if somewhere there exist life, so we call it UFO.

I found it really funny to read this topic. Pray for better Bitcoin exchange rate than for not being attacked by Hitler army from space...

We actually nothing can claim with certainty do they exist or not.Real evidence are hidden from our eyes , because knowledge can be used as weapon.I believe we are deliberately spammed with disinformation, to stay non interested to this tematic.This makes me believe even more, that something exist.